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Month: November 2014

SOA or Service Oriented Architecture is a concept that is initially designed to attain the agile enterprise vision using a flexible IT infrastructure that makes business to reply to alterations in efficient manner. Due to change of business dynamics, several opportunities emerge and developers should be able to design and provide enterprise java software solutions and apps before these opportunities disappear.

When an application framework is provided to developers, it enables them to understand the SOA concepts and empowers them to use them for Java application development projects. The framework offers the infrastructure required for designing and developing apps that are based on these concepts.

Developers use systematic requirement-driven approach to build an app framework for these concepts using their years of experience and expertise. The approach helps developers to arrive at the desired objective in a systematic manner. They have a clear objective and goal, systematic process and guiding principles, like:

Requirement-driven technology

Easy to use

Standard based and pattern-driven

Latest and upgraded

Practical

Buy and recycle existing things instead of building them again

Different framework components requirement for SOA implementation:

Defined mechanism- Developers need to define mechanism for service interface with the existing operations and input & output parameters.

Registry of services- It is used by service providers to register their service implementation and consumers can look up a service implementation with it.

Well-defined service orchestration – It is a mechanism that takes care of long running and flow of interactions.

Enterprise service bus- developers can plug in and out the service implementation with it. This supports synchronous, asynchronous, transformation, etc.

Well defined service invocation- mechanism allows the service to be implemented and invoked through several technologies including EJBs, web services, etc.

Well defined mechanism- it handles service aspects like management, audit, access control, etc.

Components for:

Service definition-

Apache axis

WebMethods

Framework

Glue framework

Web Service Invocation Framework (WSIF)

Service Management components-

The Spring

Service Invocation components-

The Mule

Conclusion- All the above information is shared by experts to help Java developers and entire development community in understanding different approaches to transform SOA concepts and essential components required for java software development for enterprise. In case we have missed or skipped anything, you can mention it in your comments. Do follow us for latest updates related to java news.

Java automation is not a simple task and developers have to put maximum efforts to automate any Java application. In this article, we will discuss some problem solving approaches to help you with Java automation using basic Java concepts.

Robot classes

Reflection Technique

Code injection

Robot classes to automate Java

Robot is one of the typical Java classes for stimulating keyboard events. The best part is that Robot classes can be used to automate almost any application. The application can be automated if –

Screen solutions on all desktops is same

Each application has same height and width

Co-ordinate value should be same in all possible scenarios.

Multitasking should not be performed when running robot class automation technique

This is usually considered as imperfect automation technique as it is not good for stimulating UI. Developers have to go inside Java code to access required objects and continue with desired operations. Then how can we access third party objects? The next two automation techniques solve the problem considerably.

Reflection automation Technique

Reflection technique is a good automation technique for UI component objects but it is not good for automating applet apps. It is true that applet works on dynamic parameters and very complex to understand. When dimensions are not fixed, it becomes hard for developers to automate any application.

Code injection into running JVM

This is most suited approach where code can be migrated from one machine to other without changing its basic information and coding standards. Here it is assumed that third party application is already running and code injected into it directly.

There are two possible techniques for code injection – Java instrumentation and instrumentation agent. Developers have to know how to use these techniques to automate Java applications using core Java.

Here, we have discussed best automation techniques suitable for almost any Java web application. From the discussion, it is clear that code injection is most suited approach for Java automation. However, you have to face hurdles during implementation but experience and practice will overcome the problems.